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Finding the Fourth Proportional to 659,773.65, 910,216.95 and 401,443.49

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Solution

The fourth proportional to 659,773.65, 910,216.95 and 401,443.49 is: 553,827.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,773.65 : 910,216.95 = 401,443.49 : x
  2. Step 2: Convert to fraction form
    659,773.65/910,216.95 = 401,443.49/x
  3. Step 3: Cross multiply
    659,773.65x = 910,216.95 × 401,443.49
  4. Step 4: Simplify right side
    659,773.65x = 365,400,669,835.29
  5. Step 5: Solve for x
    x = 365,400,669,835.29/659,773.65
  6. Step 6: Final answer
    x = 553,827.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.